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POHow do I use column values as xml element names using for xml in SQL Server 2005?
 

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  1. POHow do I use column values as xml element names using for xml in SQL Server 2005?
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    <p>Simplifying what I'm doing somewhat, as an example, say I have the following tables:</p> <pre><code>declare @elements table (id int, name nvarchar(20)) insert into @elements (id, name) values (1, 'FirstName') insert into @elements (id, name) values (2, 'Surname') insert into @elements (id, name) values (3, 'Address') declare @values table (id int, value nvarchar(20), elementId int) insert into @values (id, value, elementId) values (1, 'XXX', 1) insert into @values (id, value, elementId) values (2, 'YYY', 2) insert into @values (id, value, elementId) values (3, 'ZZZ', 3) </code></pre> <p>which simply defines a table of element names that could be dynamic, against which are defined a table of values.</p> <p>What I would like is to generate XML in the following form, where the values of the @elements table become the element names, and the values of the @values table become the values.</p> <pre><code>&lt;Customer&gt; &lt;FirstName&gt;XXX&lt;/FirstName&gt; &lt;Surname&gt;YYY&lt;/Surname&gt; &lt;Address&gt;ZZZ&lt;Address&gt; &lt;/Customer&gt; </code></pre> <p>However my efforts with <code>for xml</code> so far are not going so well:</p> <pre><code>select e.name, v.value from @elements e inner join @values v on v.elementId = e.id for xml path(''), root('customer') </code></pre> <p>returns</p> <pre><code>&lt;customer&gt; &lt;name&gt;FirstName&lt;/name&gt; &lt;value&gt;XXX&lt;/value&gt; &lt;name&gt;Surname&lt;/name&gt; &lt;value&gt;YYY&lt;/value&gt; &lt;name&gt;Address&lt;/name&gt; &lt;value&gt;ZZZ&lt;/value&gt; &lt;/customer&gt; </code></pre> <p><code>for xml auto</code> returns</p> <pre><code>&lt;customer&gt; &lt;e name="FirstName"&gt; &lt;v value="XXX" /&gt; &lt;/e&gt; &lt;e name="Surname"&gt; &lt;v value="YYY" /&gt; &lt;/e&gt; &lt;e name="Address"&gt; &lt;v value="ZZZ" /&gt; &lt;/e&gt; &lt;/customer&gt; </code></pre> <p><code>for xml raw</code> returns</p> <pre><code>&lt;customer&gt; &lt;row name="FirstName" value="XXX" /&gt; &lt;row name="Surname" value="YYY" /&gt; &lt;row name="Address" value="ZZZ" /&gt; &lt;/customer&gt; </code></pre> <p>Is there a way I can get the values from a column to output as element names? I'm sure I'm missing something obviously simple here.</p>
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    1. COI don't think you can do that. You can do a lot with the various FOR XML commands - but in all cases, the names of the resulting XML elements and/or attributes need to be fixed, e.g. typed in by you. I don't know of any way to get those to be pulled from a table and dynamically assigned
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